package com.qf.common.utils;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

/**
 * Created by howhow on 2018/6/17.
 * 文件管理器工具类
 */

public class FileManager {
    private int OPEN_FILE_MANAGER = 1;
    private int OPEN_GALARY = 2;
    private int OPEN_AUDIO = 3;
    private int OPEN_VIDEO = 4;
    private int OPEN_VIDEO_IMAGE = 5;

    /**
     * 打开文件管理器，不分类型
     */
    public void openFileManager(Activity activity) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("*/*");//无类型限制
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        activity.startActivityForResult(intent, OPEN_FILE_MANAGER);
    }

    /**
     * 打开文件管理器，图库
     */
    public void openGalary(Activity activity) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("image/*");
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        activity.startActivityForResult(intent, OPEN_GALARY);
    }

    /**
     * 打开文件管理器，音频
     */
    public void openAudio(Activity activity) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("audio/*");
        intent.setType("*/*");//无类型限制
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        activity.startActivityForResult(intent, OPEN_AUDIO);
    }

    /**
     * 打开文件管理器，视频
     */
    public void openVideo(Activity activity) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("video/*");
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        activity.startActivityForResult(intent, OPEN_VIDEO);
    }

    /**
     * 打开文件管理器，视频和图片
     */
    public void openVideoImage(Activity activity) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        intent.setType("video/*;image/*");
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        activity.startActivityForResult(intent, OPEN_VIDEO_IMAGE);
    }

    // 对结果的处理是放在onActivityResult中

    /**
     * 获取路径
     * @param data
     * @return
     */
    public String getPath(Intent data) {
        return data.getData().getPath();
    }

    /**
     * 专为Android4.4设计的从Uri获取文件绝对路径
     */
    @SuppressLint("NewApi")
    public String getPath4(final Context context, final Uri uri) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {

                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{split[1]};

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {
            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }
        return null;
    }

    /**
     * 140      * Get the value of the data column for this Uri. This is useful for
     * 141      * MediaStore Uris, and other file-based ContentProviders.
     * 142      *
     * 143      * @param context       The context.
     * 144      * @param uri           The Uri to query.
     * 145      * @param selection     (Optional) Filter used in the query.
     * 146      * @param selectionArgs (Optional) Selection arguments used in the query.
     * 147      * @return The value of the _data column, which is typically a file path.
     * 148
     */

    public String getDataColumn(Context context, Uri uri, String selection,
                                String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }

        } finally {
            if (cursor != null)
                cursor.close();

        }
        return null;

    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());

    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());

    }

}
